AND SPECIES HYBRIDS WITHIN THE GENUS SACCHARUM 147 
The reduction division of Fidji-cane 
Fidji shows complete chromosome-reduction besides incomplete 
one. The haploid chromosome-number again is 40. 
Fig. 50 pictures a diakinesis-nucleus, containing 40 chromatine-ele- 
ments, probably all bivalent. The nucleolus of this nucleus is transpa- 

Fig. 50. 
Fig. 50. Pollenmothercell of Fidji in diakinesis x 2300. 
rent and consequently can hide no chromosomes. To the left of this 
body some chromosomes cover one another nearly completely, yet all 
could be focussed separately with ease. Above the nucleolus a geminus. 
is lying, the two chromosomes of which have almost quite separated, 
they might have reached the nuclear plate as two separate elements 
during the metaphase. 
Fig. 51 also shows a diakinesis of this cane. Here also probably 40 
gemini are present. Besides a large transparent nucleolus several small 
nucleoluslike bodies occur in this nucleus, having approximately the 
size of chromosomes and also staining blue-black in haematoxyline. 
These nucleoli cause much trouble in counting, because very close 
observation only allows to distinguish them, by their round shape, from 
